/Engine/Source/Runtime/SlateCore/Public/Application/SlateApplicationBase.h
The widgets will be returned with the associated geometry. The first item will always be the top-level window while the last item will be the leaf-most widget.
The path to the widget.
[FWidgetPath](API\Runtime\SlateCore\Layout\FWidgetPath) LocateWindowUnderMouse ( [UE::Slate::FDeprecateVector2DParameter](API\Runtime\SlateCore\Types\FDeprecateVector2DParameter) ScreenspaceMouseCoordinate, const [TArray](API\Runtime\Core\Containers\TArray)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWindow](API\Runtime\SlateCore\Widgets\SWindow) > > & Windows, bool bIgnoreEnabledStatus, int32 UserIndex )